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San Diego's Most Trusted Functional Medicine Center

At Gain Wellness Center, we specialize in functional medicine to help you uncover the root causes of hormonal imbalances, gut health issues, and chronic conditions. Led by Dr. Mandy Walia, our personalized approach combines science and holistic care to restore balance and transform your health naturally

Mandy Walia Headshot

Gut & Digestive Health

Discover personalized solutions for optimal gut health and digestion

Hormone Imbalances

Learn how we balance hormones to restore your body’s vitality

Stress Management

Find effective strategies to manage stress and regain inner peace

Thyroid
Care

Explore treatments designed to optimize thyroid health and boost energy

Auto-Immune Reset

Understand how to manage auto-immune conditions & live better

About Us

Searching for a Natural Solution to Your Health Issues?

“My holistic approach to gut health is designed to address the root causes of your issues, helping you regain control and feel better than ever.”  -Dr. Walia

Watch the video to learn more about our approach and how it’s the solution you’ve been looking for

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Our Approach To Functional Medicine

Look Better. Feel Better. Gain Wellness.

Root Cause Approach

We focuses on identifying and addressing the root causes of health issues instead of just masking symptoms.

Personalized Care Plans

Treatment is tailored to your unique genetics, lifestyle, and environmental factors for optimal healing

Holistic Healing

Our approach combines nutrition, lifestyle changes, and natural therapies to support the whole body.

Gut Health Restoration

A healthy gut is central to overall well-being, with targeted solutions to repair and balance digestion.

Hormone Balance

Functional medicine works to restore hormonal harmony naturally, improving energy, mood, and vitality.

Long-Term Wellness

Our focus is on sustainable health improvements, empowering you to maintain well-being for life.

Don't Just Take Our Word For It. Take A Look At Our Hundreds Of 5 Star Reviews

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Monica Steinhart
The whole process was so smooth and speaking with the staff was so easy. I am so glad I made the decision to get healthy. For over 5 years I’ve had bowel issues and within the first month i felt my digestive system being repaired. It was a little stressful giving up certain foods but the weekly food termination process made it easier. The Detox itself was much easier than I thought it would be. I felt supported and so encouraged by Dr Wallia and her staff. I thank them so much for repairing my Gut!!!
Sonia Mendez
Going through Dr. Walia’s program has helped me regulate hormone imbalances and manage stress levels by eliminating toxins and incorporating well balanced meals. Even through a difficult season of life I have gained more energy and I feel stronger and healthier than I have in over a decade. I understand this is a lifestyle change that will sustain overall wellness in all areas of my life. I have been able to see a change in weight that I have struggled for years with, but overall better sleep and focus as well helping me be more present.
Favor Lashbrook
Finding quality healthcare these days can be quite challenging. Well look no further, Dr. Walia is not only patient & kind she really cares about getting you feeling your absolute best. I highly recommend Gain Wellness, staff & Dr.s are exceptional. Thanks Gain Wellness for all your time and care through the years!!
Kim Sergent
Dr. Walia and her staff are top notch providing knowledge and support throughout the wellness program. Everyone is very kind and friendly. I suffered from serious lack of energy and chronic pain. Having a full time very physical job, it was necessary to take action. I had been through the normal channels with regular mds and specialists that insisted there was nothing wrong with me. I also had a melanoma removed so had already changed my diet significantly. Dr. Walia helped me fine tune my diet, offered good solid supplements, and tweaked my exercise routine. The gradual changes in diet make it easy to follow through. End result: much more energy and strength and less pain. Thank you Team Gain Wellness!
Shota S.
Dr. Walia has helped me improve my digestive system and gut health since I have started my program, and she is very positive and encouraging. The portal is extremely engaging and informative making me feel very supported throughout the program. Although I have not reached my main goal, with her help I have learned so much. Overall amazing experience.
Jaskiran Sodhi
Dr. Walia is the first doctor that focused on understanding my gut health and its impact on my overall well-being. She took the time to listen carefully, ask insightful questions about my symptoms and concerns, and assess all aspects of my health to develop a personalized plan that addresses the root causes.
Shari A
My life and well-being have changed since I began coming to the Gain Wellness Center. I was feeling like all hope was lost. No one was listening to me at my own personal doctor’s office. The answer to every issue was “ more medication”. Since meeting Dr Walia, My blood pressure has never been lower. My energy level hasn’t been this great since my twenties and I’m 62! I sleep better. My anxiety has disappeared. I have never felt better or more cared for since I met Dr. Walia Mandeep. I am forever grateful.
Christopher Florence
Dr. Wahlia is a wonderful doctor. She’s understanding, very professional, and very knowledgeable. The care I received while under her care was above reproach to say the least. She diligently helped me back to where I needed to be both physically and mentally for work. She doesn’t give up and does all she can every time to make sure I received the best care she has to give.
Amy Mullen
I recently completed the 6-month program. As both a client and an RN, I highly recommend Gain Wellness to anyone of any age. Dr. Walia develops a personalized plan and adapts it as needed blending holistic and science-based treatments. As my body began to heal itself naturally, it was very easy to get the benefits of weight loss, lower blood pressure, lower heart rate, much better sleep and stress management. Dr. Walia was so caring and supportive of me throughout every step of the way. I am so grateful to have my health and life back!
Sara Yazdi
So thankful a friend referred me to Dr. Walia. I had been struggling with chronic fatigue, Brian fog, hair loss, and weight gain for almost 10 years. I told multiple doctors about it, but no doctor seemed to run any tests farther than a simple TSH which always would come back normal. When I got to Dr. Walia’s office, I felt heard and listened to for the first time. Dr. Walia ran all the tests she felt necessary without hesitation. I immediately got my labs back which showed I had Hashimoto’s thyroiditis. She put me on a specific supplement protocol along with some strict dietary changes. I am still on my journey but I feel so much better than when I started 5 months ago. My brain fog is completely gone, I lost 15 pounds and my energy levels are much more steady throughout the day. I am so thankful I went to her and highly recommend her and her wonderful team!
Rosa Garcia
I was having real bad stomach issues, bloating , gas, swelling and acid reflux. After just two months of following Dr Walia plan not only are my stomach issues gone but managed to lose over 20 pounds in the first two months! I highly recommend Dr. Walia and entire team!
JoAnn Samuels
Dr Walia is a very thorough and knowledgeable professional. Her program guides you step by step on how to make significant, positive changes in your life. This includes educational materials, videos, recipes, surveys and follow up visits that are tailored to your specific needs, just to name a few. She takes time to answer your questions, not only during your appointments, but her colleagues assist you if something needs to be cleared up. If necessary they refer to Dr Walia and get back to you in a timely fashion. Although I have recently finished the program, she continues to support me whenever necessary. Thank you so much to Dr. Walia and her team !!!
Martha Adame
I am thankful to God for Dr. Walia and her team. Dr. Walia is a caring and knowledgeable professional. With her guidance, I was able to lose weight. I now sleep better and, I was able to stop taking blood pressure medication.
Pamela Renee
After attending a wellness seminar, I signed up for a one-one appointment with Dr. Walia. Her calm demeanor and passion for helping others is evident in the thoroughness and amount of time she spends with you. Nothing cookie cutter about her. If you are willing to invest in yourself to get your wellness back on track, I would highly recommend starting here.
Lillian Wolfensohn
I have never written a review in my life and the only reason I am writing this today is because Gain Wellness has changed my life. For over a decade I lived in constant pain. For over a decade I lived in fear of food causing pain. Throughout this period no doctor was able to provide any relief or understanding as to what was going on. Dr. Walia and her team heard my struggles, listened to what I was concerned about, and created a plan to not only improve my quality of life but finally provide some answers. Dr. Walia and her team are dedicated, passionate, and accessible. To anyone who struggles with stomach pain and has struggled to find answers, don’t waste another minute, call Gain Welllness!
Noel Angeles
It was my best decision to enroll and get healthy under the care of Doctor Walia. The four months program went by quick and smooth. At first I was not fully convinced that I will get better. Dr Walia proved me wrong. She knows exactly what my problem is. She had asked me to stop all my current medications. With her close guidance, supplements, healthy diet I now feel better with my abdominal issues(i. e. pain, bowel movements, heart burns etc). I’m happy and glad that I have met Dr. Walia and her team. I recommend her to anyone who needs help
John Hluboky
My wife and I saw Dr. Walia to help coach us to a healthier lifestyle. In 3 months under her guidance, we lost collectively 60 pounds, have more energy, and feel totally rejuvenated. I highly recommend Dr. Walia’s functional medicine approach to health for anyone looking to make a positive change.
Amy Mullen
I recently completed the 6-month program. As both a client and an RN, I highly recommend Gain Wellness to anyone of any age. Dr. Walia develops a personalized plan and adapts it as needed blending holistic and science-based treatments. As my body began to heal itself naturally, it was very easy to get the benefits of weight loss, lower blood pressure, lower heart rate, much better sleep and stress management. Dr. Walia was so caring and supportive of me throughout every step of the way. I am so grateful to have my health and life back!
Alexis Alvares
My experience with gain wellness center and Dr. Walia so far has been really good. I've seen positive results and I am happy I joined the program, so far I have no regrets. Also one thing that has stood out to me and I greatly appreciate is that Dr. Walia honestly listens and i know she truly cares about her patients.
Jason Parsons
I visited Dr. Walia at the Gain Wellness in 2016. I was overweight, had no energy and desperately needed help. Dr. Walia and her team set me on the path to recovery. Based on our consultation and lab results, they were able to design a program specifically designed for me and I have since lost 50 lbs and haven’t had this much energy in years! They took a very holistic approach and gave me great nutritional suggestions. If you’re looking for an enjoyable experience visiting the doctor, this is the doctor to visit! Thanks Gain Wellness Center for changing my patterns and undoubtedly adding years to my life!

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San Diego’s Best Functional Medicine Practice

Monday
9:00 AM - 5:00 PM
Tuesday
9:00 AM - 5:00 PM
Wednesday
9:00 AM - 5:00 PM
Thursday
9:00 AM - 5:00 PM
Friday
Closed
Saturday
Closed
Sunday
Closed

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